解压缩类

public class ZipUnit {
/**
* 压缩文件-由于out要在递归调用外,所以封装一个方法用来
* 调用ZipFiles(ZipOutputStream out,String path,File... srcFiles)
* @param zip
* @param path
* @param srcFiles
* @throws IOException
* @author isea533
*/
public static void ZipFiles(File zip,String path,File[] srcFiles) throws IOException{
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zip));
ZipUnit.ZipFiles(out,path,srcFiles);
out.close();
System.out.println("*****************压缩完毕*******************");
}
/**
* 压缩文件-File
* @param zipFile zip文件
* @param srcFiles 被压缩源文件
* @author
*/
public static void ZipFiles(ZipOutputStream out,String path,File[] srcFiles){
String str = "";
path = path.replaceAll("\\*", "/");
if(!path.endsWith("/")){
path+="/";
}
byte[] buf = new byte[1024];
try {
for(int i=0;i<srcFiles.length;i++){
if(srcFiles[i].isDirectory()){
File[] files = srcFiles[i].listFiles();
String srcPath = srcFiles[i].getName();
srcPath = srcPath.replaceAll("\\*", "/");
if(!srcPath.endsWith("/")){
srcPath+="/";
}
out.putNextEntry(new ZipEntry(path+srcPath));
ZipFiles(out,path+srcPath,files);
}
else{
FileInputStream in = new FileInputStream(srcFiles[i]);
System.out.println(path + srcFiles[i].getName());
out.putNextEntry(new ZipEntry(path + srcFiles[i].getName()));
int len;
while((len=in.read(buf))>0){
out.write(buf,0,len);
}
out.closeEntry();
in.close();
}
}
} catch (Exception e) {
e.printStackTrace();
}
}

/**
* 解压到指定目录
* @param zipPath
* @param descDir
* @author isea533
*/
public static void unZipFiles(String zipPath,String descDir)throws IOException{
unZipFiles(new File(zipPath), descDir);
}
/**
* 解压文件到指定目录
* @param zipFile
* @param descDir
* @author isea533
*/
@SuppressWarnings("rawtypes")
public static void unZipFiles(File zipFile,String descDir)throws IOException{
File pathFile = new File(descDir);
if(!pathFile.exists()){
pathFile.mkdirs();
}
ZipFile zip = new ZipFile(zipFile);
for(Enumeration entries = zip.entries();entries.hasMoreElements();){
ZipEntry entry = (ZipEntry)entries.nextElement();
String zipEntryName = entry.getName();
InputStream in = zip.getInputStream(entry);
String outPath = (descDir+zipEntryName).replaceAll("\\*", "/");;
//判断路径是否存在,不存在则创建文件路径
File file = new File(outPath.substring(0, outPath.lastIndexOf('/')));
if(!file.exists()){
file.mkdirs();
}
//判断文件全路径是否为文件夹,如果是上面已经上传,不需要解压
if(new File(outPath).isDirectory()){
continue;
}
//输出文件路径信息
System.out.println(outPath);

OutputStream out = new FileOutputStream(outPath);
byte[] buf1 = new byte[1024];
int len;
while((len=in.read(buf1))>0){
out.write(buf1,0,len);
}
in.close();
out.close();
}
System.out.println("******************解压完毕********************");
}
}